Packing-gland.



G. DRIES.

PACKING GLAND.

APPLICATION FILED ocT. Is, 1913.

Patented June 27, 1916.

INVENTUR:

WINES-858: #mma 7557/.

To all lwhom t may concern: f

GoTTFnIEn Demeter NEWARK, .NEW JERSEY.

- Be it knownthat LGOTTFRIED Duras, a

citizen-of the United States, and a resident of Newark, in the county ofEssex and State'of New Jersey, have invented certain i new'A andusefulImprovements' in Packing- Glands, of which thewfollowing isaspecification.

The objects of this invention are'to pro-v vide a sectional packinggland in which the sections cannot normally separate and alter theshapeof or enlarge the central aperture' througl which a slidablepuinprodor other movable member reciprocates; to thus -promote a tight jointor p'acklng; to provide for `removal ofsaid gland from the pump rod orother member by sliding one of Said sectionsl longitudinally ofsaidmember to dise'ngagethe-y sections; to apply the inventlon to theseveral forms of glands required for various purposes and with -variednumber of bolt holes; to procure exact registration of the sections; tohold said sections together independent of the bolts or studs used tomaintain the gland in operative position; to secure simplicity ofconstructlon and operation, .and to obtain other advantages and resultsas may be brought out 1n the following description.

Referring to the accompanymg drawings, in which like numerals ofreference 1nd1- cate the same parts throughout the several views, Figure1 is a perspective v1ew of'one form of gland embodying my invention;Fig. 2 is a face view of the same looking at the under side of the glandas shown 1n Fig. 1; Fig. 3 is a sectional view taken on' the broken lineA-A of Fig. 2, looking in the direction indicated by the arrow, andFig'. 4 is a face view, similar to Fig. 2, of a modified form of myinvention applied to a circular gland. t

In the specific embodiment of the mvention illustrated in said drawings,a packing gland is shown providing 'a tubular or sleeve portion with aflange, projectlng from one end thereof, the sleeve being splitlongitudinally and the flange portlons carried by the two sections ofthe sleeve adapted to interlock with each other. In the particularinterlocking construction which I have shown, the flange portion of onesleeve section is provided at its ends and for one half of its thicknesswith tongues having adjacent walls with converging or approachiappueatmmeaoetober18,1913. sexismo. 795,367.

.I Specification of Letters Patent.: r Patenfedgun 27" 1916.

ing portions whichton'gu'es are adapted: to

fit into correspondingly shaped lrecesses in the flange of the othervsleeve section, said other sleeve secton'having at its ends and for theyother half ofits thickness .other tongues with adjacent converging `orapproaching edge portions adapted to `fit cori respondlng recesses inthe first-mentioned flange section. The sleeve sections-are thereforedove-tailed together by the flange portions and cannot separate exceptby'sliding longitudinally with respect to each other. Preferably ascrewor the like extends from the tongue of one flange 'into the otherflange, `13o-prevent inadvertent separationv ofthe sleevesections duringtransportation, storage and so forth, and consequent inconvenience ordamage to the sections', and if desired a plurality of such 'screws canbe employed.

"Holesmay be provided in the flange of 'the gland, to 'any'. desirednumber yand in any desired, arrangement"to receive the usual bolts orstuds for securing' the glandA in place.

In Figs. 1, 2and 3 of the drawings I have shown a gland with sleevesections 1, 2 and flange portions 3, 4 forming together a flange of theordinary and well-known elongated type having at its ends the bolt orstud holes 5, 5. The sleeve sections are divided upon\a\ plane extendinglongitudinally of the flange portion, as at 6, and the tongues 7, 7 ofthe flange portion 3 enter recesses 8, 8 in the other flange portion 4while the tongues 9, 9 on said other flange portion enter recesses 10,10 in the rst-mentioned flange portion 3. The adjacent edgesof each pairof tongues converge upon planes 11, 11, or 12, 12, and as the recessesare correspondingly shaped, the desired interlocking is secured. In saidFigs. 1-3 inclusive, 13, 13 indicate screws, preferably fillister headscrews, which I have shown detachably holding the gland sectionstogether.

In Fig. 4 I have shown a gland having a circular flange, the tongues ofwhose portions have their facing edges shaped as at 14, 15, 16, theparts 15 of said edges converg-` ing so as to lock the gland sectionstogether. Obviously the facing edges of the tongues mi ht be otherwiseshaped if desired, and obvlously the flange may be of any desired shapeand provided with any desired lnumber of bolt or stud holes. The glandmay furthermore be divided into more sections than two if desired and'these sections connected according to my invention.

In operation, first one section of the gland is Placed on the pump rodor other movable member and then the other section is placed on the rodas near as possible to the rst section. Then by sliding one sectiontoward the other, the dovetail members slide together and prevent thesections of the gland from spreading radially of the pump rod. In otherwords, the central aperture through which the pump rod extendsnecessarily remains cylindrical and cannot spread. at all to loosen thejoint. The only possible Way for the sections to separate islongitudinally of the pump rod, and when they are assembled and boltedin operative position such movement is positively prevented.

The facing edges of the tongues, which I have described as converging orapproaching each other transversely of the sleeve or in the plane of theiange, are substantially perpendicular to said flange, so that there isnever any obstruction t0 movement ofthe sections toward and away fromeach other longitudinally of the sleeve. Thus the bolts or studs for thegland can freely clamp the sections together, and yet at the same timethere can be no tendency of the gland sections to spread or separateradially. All the advantages of a solid o r one-piece gland are maaar@secured, therefore, as well as the convenience of having the gland insections. l Having thus described the invention, what I claim is: l

.A packing gland comprising a flanged sleeve split longitudinally ofitself each flange portionhaving at the extremities of its split edge apair of tongues projecting in the plane of the flange across the planeof splitting and adapted to extend into corresponding recesses in theother flange portion, the inner facing edges of said tongues havingportions whlch converge longitudinally of said edges in the plane of theflange and the other Bange portion having correspondingly divergingWalls of its recesses adapted to lit against said converging edgeportions of the tongues when the sections are together, the ends of thesplit flange portions having bolt holes in alinement with said plane ofsplitting, whereby the sections into which the flanged sleeve are splitare prevented from separating in a direction transverse to the plane ofsplitting and the said bolt holes in the ends of the flange portionsextend through entire portions thereof.

GOTTFRIED DRIES.

Witnesses:

HOWARD P. KING, JANET A. AYERS.

